Variable-pitch propeller
可调螺距螺旋
🧩 词语组成解析
pitch
[pɪtʃ]
n. 场地;最高点;音高;说教;
vt. 用沥青涂;扔，投;树起，搭起;定位于;
vi. 抛，扔;[棒球]当投手;搭帐篷;向前跌或冲;
🗣️ 情景例句
What are you working on?
你在做什么？
How many dozen are you going to take?
你要拿几打？
It's nearly ready.We can have dinner at seven o'clock.
马上就好。7点钟我们可以吃饭。